TYPO3 Core

I ran into the same issue today

I tried to change the bodytext label. I can change the field to an input field, but I cannot change the label:

custom_ext/Configuration/TCA/Overrides/tt_content.php looks like this:

$GLOBALS['TCA']['tt_content']['types']['customext_test'] = [
    'showitem' => '
        --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:general,
            --palette--;;general,
            --palette--;;headers,
            bodytext;LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:bodytext_formlabel,
        --div--;LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:tabs.appearance,
            --palette--;;frames,
            --palette--;;appearanceLinks,
        --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:language,
            --palette--;;language,
        --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:access,
            --palette--;;hidden,
            --palette--;;access,
        --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:categories,
            categories,
        --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:notes,
            rowDescription,
        --div--;LLL:EXT:core/Resources/Private/Language/Form/locallang_tabs.xlf:extended,
    ',
    'columnsOverrides' => [
        'bodytext' => [
            'label' => 'LLL:EXT:custom_ext/Resources/Private/Language/backend.xlf:test.title',
            'config' => [
                'type' => 'input',
                'size' => 30,
                'max' => 255,
            ],
        ],
    ],
];

\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTcaSelectItem(
    'tt_content',
    'CType',
    [
        'LLL:EXT:custom_ext/Resources/Private/Language/backend.xlf:test.title',
        'customext_test',
        'content-test',
    ],
    'textmedia',
    'after'
);

sry for my late response,

with TYPO3 8.7.31 this works:

$tempTypes =[
    'custom_type' => [
        'columnsOverrides' => [
            'assets' => [
                'label' => 'Hintergrundbild (1920 x min.1100px)',
            ],
            'image' => [
                'label' => 'Bild für Mobile Ansicht (unterhalb der Tage)',
            ],
        ],
        'showitem' => 'assets,image',
    ],
];
$GLOBALS['TCA']['tt_content']['types'] += $tempTypes;

Christian Hackl wrote:

sry for my late response,

with TYPO3 8.7.31 this works:

[...]

Thank you Christian for your response. I use 10 LTS....

columnsOverrides works for labels of fields that were defined in TCA with tablename.fieldname.label. It does not seem to work if the field was added with an inidividual label in showitem like fieldname;label.

I just tested this in 10.4.15. The field pages is defined in frontend/Configuration/TCA/tt_content.php with the label LLL:EXT:core/Resources/Private/Language/locallang_general.xlf:LGL.startingpoint. It is later added to menu_pages.showitem with a different label though: pages;LLL:EXT:frontend/Resources/Private/Language/locallang_ttc.xlf:pages.ALT.menu_formlabel. Therefore the following does not work:

$GLOBALS['TCA']['tt_content']['types']['menu_pages']['columnsOverrides'] = [
    'pages' => [
        'label' => 'myBrilliantLabel',
    ],
];

What does work for the same element though is this:

$GLOBALS['TCA']['tt_content']['types']['menu_pages']['columnsOverrides'] = [
    'rowDescription' => [
        'label' => 'myBrilliantLabel'
    ],
];

The only difference is that rowDescription does not get an individual label in menu_pages.showitem.